Greater Sydney Area HEMS, NSW Ambulance, Bankstown Airport, New South Wales, Australia.
St George & Sutherland Clinical Schools, UNSW, Sydney, NSW.
Emerg Med J. 2018 Dec;35(12):739-742. doi: 10.1136/emermed-2017-207418. Epub 2018 Aug 29.
With the increasing role of point-of-care coagulation testing in trauma, we sought to test the reliability of the thromboelastography (TEG)6s machine in a simulated rotary wing environment.
A two-arm study was conducted, running TEG6s quality control cartridges in a helicopter flight simulator with realistic vibration and in stable ground conditions. The flight conditions during testing included take-offs, landings and inflight emergencies such as engine failures. TEG values for R time, K time, α-angle and maximum amplitude (MA) were collected and compared with manufacturers' normal ranges.
148 TEG samples were included for analysis (72 simulator arm, 76 ground arm). In the simulator arm, four of our K time values fell below the normal range and four MA values were above the normal range. All other values in both simulator and ground arms were in the normal range.
The TEG6s is a viable technology in the simulated rotary wing environment, and it is feasible to conduct further studies using human blood in live rotary wing conditions. Extreme flight conditions should be avoided during further testing.
随着即时凝血检测在创伤中的作用不断增加，我们试图在模拟旋转翼环境中测试血栓弹力图（TEG）6s 仪器的可靠性。
进行了一项双臂研究，在直升机飞行模拟器中进行 TEG6s 质量控制管的运行，同时模拟了真实的振动和稳定的地面条件。测试过程中的飞行条件包括起飞、着陆和飞行中紧急情况（如发动机故障）。收集并比较 R 时间、K 时间、α 角和最大振幅（MA）的 TEG 值与制造商的正常范围。
共纳入 148 个 TEG 样本进行分析（模拟器臂 72 个，地面臂 76 个）。在模拟器臂中，我们有四个 K 时间值低于正常范围，四个 MA 值高于正常范围。模拟器臂和地面臂中的所有其他值均在正常范围内。
TEG6s 在模拟旋转翼环境中是一种可行的技术，在实际的旋转翼条件下使用人体血液进行进一步的研究是可行的。在进一步的测试中应避免极端的飞行条件。
